A meteor crater buried beneath Oklahoma has turned out to be nearly 100 million years younger than scientists thought. Zircon crystals show the Ames impact occurred about 370 million years ago, ...
Sixty-six million years ago, a single asteroid hit Earth in the Yucatán Peninsula and killed off the dinosaurs. The disaster ...
Zircon crystals reveal that a meteor struck Oklahoma nearly 100 million years later than believed, around the time of a major mass extinction.
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